I am actually descended from both Mary Ann Jackson Callen and Elizabeth Jane Jackson Redick. Mary Ann's son John Callen married Elizabeth Jane's daughter Mary Ann Redick. They had James Arthur Callen my great grandfather.
Thank you for the info on Thomas Jackson - My sister Edna Callen McNellis is writing a second book on the Callen Genealogy. She just emailed me a copy to proofread. Now I can add a little more info.
Do you happen to know the first name of Thomas' wife?
I guess we are 6th cousins.